View Single Post
hobieboy hobieboy is offline
Registered User
Join Date: May 2002
Location: Up North
Posts: 1,446
Originally Posted by DonE View Post
Call Garrett and ask them why they provide a cooling jacket for this turbo.

I'll save you the call (because I already asked them this question). It's there to provide cooling to the turbo shaft when the average person shuts down the engine before the turbo has had time to cool at idle. It has nothing to do with cooling during use - the oil supplied to the bearings is ample to lubricate and cool them during use. I've used my turbo without supplemental cooling for more than 5 years and it's still going strong - but I always let the motor idle a couple minutes before shutting the engine off.
To be sure - we are talking about the commonly called "water jacket"?
Based on what you said, it means that even if we pump water or coolant through here, the set up needs to make sure that there's still coolant flowing through it for a few minutes AFTER the car is shut off? Or, it would have no difference than not running anything through it?

87 930 K27HFS/B&B/Twin-Plug... Megasquirted
Old 11-20-2009, 10:36 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #11 (permalink)